Support for lamps



Nv. 2??,4 A1928.

w. L. LAla SUPPORT FOR LAMPS Filed April 12, 192e Patented Nov. 27, 1928.

WILLIAM L. LAIB, OF OAK PAR-K, ILLINOIS.

SUPPORT FOR LAMPS.

Application led April 12, 1926 Serial No. 101,599.

Thisl invention relates to devices for supporting and connecting lamp hoods and electric lamps, such as are capable of belng used on or in connection with electric signs or the like, or for other or similar purposes.

The principal object of the invention 1s kto provide a simple, economical and elicient device lfor supporting and connecting lamp hoods andlamps, and more particularly, to provide an improved device for supporting and connecting color hoods and electric lamps such as are adapted to be used on or to form a part of an electric sign, or for other or similar purposes. l

A further object of the invention is to provide an improved means for supporting and connecting color hoods and electric lamps,

Y whereby the electric lamps of or forming a part of an electric sign may be secured in positionupon the sign boarc or plate, and the color hoods for covering such lamps may be removably mounted and detachably secured in position upon such hood-supporting means and removed therefrom with facility and Without disturbing the lamps, and whereby the hood-supporting means may be secured upon the sign board or support and connected with the lamp by means of the lamp socket or lamp and in such a manner as to permit the removal of the hoods without disturbing or removing the lamps.

Other and further objects of the invention will appear romthe following description and claims, and from an inspection of the accompanying drawings, which are made a part hereof.

The invention consists in the features, combinations, details of construction, and arrangement ofv parts herein described and claimed. 1 y

In the accompanying drawings- Y Figure 1 is a view in section taken through the center of a lamp hood and hood-supporting device for an electric lamp on or forming a part of an electric sign, with parts of the lamp socket shown in section and other parts of the socket shown in elevation, and with the sign board or plate on which the hood and lamp are supported shown in section, all constructed in accordance with my invention;

Fig. 2 is a sectional view of the lamp and lamp hood and supporting and connecting means therefor, taken on line 2-2 of Fig. 1, looking in the direction indicated bythe arrows, and showing the inner and outer annular hood-supporting members and the inner recessed and flanged socket-engaging l member of the hood-supporting device; an

Fig. 5 is a det-ail bottom plan view of the inner and outer annular detachably connected flanged members of the hood-supporting device shown in said Figs. 1, 2, 3, a d 4.

In constructing an improved device for supporting and connecting lamp hoods and electric lamps, and an improved electric sign provided therewith, I provide one or more lam) hoods or color hoods 1, formed, by pre erence,'of colored glass, and each adapted to encircle and enclose Va corres onding electric lamp bulb 2 which is-provi ed with a metallic screw-threaded neck 3 adapted to be removably inserted in screw-threaded engagement with a similarly screw-threaded metallic sleeve or inner socket member 4 o'f a lamp socket 5, said socket consisting of or comprising in its construction a lbottom socket member or base 6 of porcelain or other suitable insulating material, an inner socket sleeve member' 7 which is also formed of porcelain or similarinsulating material and provided with an inner screw-threaded bore or threaded surface portion 8 on a tapered' annular neck or sleeve portion 9 which extends into a similarly tapered axial Opening 10 in said bottom socket member or base 6 and between the sleeve 4 and said base 6, the screw-threaded bore 8 being in screw-threaded engagement with the vinner threaded'metallic sleeve 4 which is fixed to the base or socket member 6 and inV threaded engagement with the neck 3 of the lamp bulb.' The lamp bulb 2 is, of course, provided with the usual incandescent filament 11 having the lusual electric terminals--not shownwhich are adapted to be engaged by or electrically connected with corresponding polesor terminals 12 and 13, respectively, in the bottom socket member or insulating base 6, said terminals being adapted to be connected with an electric circuit and source of electric supply by means of wires 15, 16, or equivalent electrically conductive elements. See Fig. 1.)

l The glass lamp hood or color hood 1 has annular or circular side walls, and its rounded closed end 17 is adapted to cover and enclose the rounded end of the glass lamp bulb 19, and having, by preference, an outer peripheral bead 2O at or near the upper ez;- tremity of the threaded portion 19, asshown `in Fig. l. v Y v Y -A metallic cup-shaped hood-supporting -4 and connecting device 22 is provided, for

hood-engaging and supporting member 23 supporting' the hood in its proper position with'respect to the lamp .or lamp bulb 2 and with respect to the sign board or plate 21 or other or similar support upon which said hood and lamp are to be mounted, and tor connecting the hood with the lamp `Vor lamp bulb and socket andfw'ith the sign vboard or plate 21."

My improvedv hood-supporting and con-k necting device 22, consists of or comprises, by preference, an outer annular metallic having an 11p-standing outer peripheral annular `flange or main body portion 2e, the'upper extremity of which is provided with an inner-threaded portion v25 which is adapted to vbe detachably secured inV engagementwith the inner threaded portion 19 of the hood 1. The threaded portion 25 may be in the form of eithera continuous helical thread or in the form of a broken thread or one or more inwardly projecting bosses adapted to act in lieu of aV thread for detachably engaging the thread 17.9 on the hood.-

' The outer annular metallic' hood-engaging v'and supporting member 23 is providedwith ,a plurality of inwardly extending securing ianges 26, 26, which areformed on and turnedinward with respect to the bottom rim or peripheral margin of said outer annular member 23, in position to detachably engage `the adjacent tace of the sign 'board or plate 21 to which said outer annular member 23er cured. Y t l Y Y v vThe outer annular hoodeengaging andsupporting member 23 has an inwardly projecting bead V27v thereon which extends around the inside of the flange or wall 2&1 and is ad jacent to but spaced Vapart with respect to the innerl securing flanges 26, 26. An inner annular plate member 28 Vhaving a central opening` therein for receiving the depending sleeve portion 9 of the inner socket sleeve member .7, encircles said sleeve portion 9, and

thelhood-supporting device 22 is .to be seis detachably secured in posit-ion upon the support or sign board 21 by means oty said socket sleeve member 'l' which is provided with a downwardly-facing annular shoulder '29 that projects outward beyond the periphery of the part 9 of said sleeve 7 and is adapty ed to admit and clamp the inner bottom an nular plate member 28 between said annular ltlange or shoulder 29 andi the sign board or plate 21.

The innerer bottom an-nularplate 28 `has a sleevem'ember andthesignboard or plate 21.

Segn'iental peripheral marginal portions orl circumferential locllringtlanges31, 31 on thei-nner annular plate 28 are located betweentheperipheral recesses or notches 39,30, and adapt edto detachably engagefand overlap or interf loclr with the inner flanges 26, 26 on the outer hood-engaging annular member23, when said innertlanges 26,26 areinserted insaid recesses and turned by partially rotating the outer annular member 23, so as to cause said parts n or flanges 26 and 31 to overlap and engage or interlock. The outer annular hood-engaging member 23, with the hood 1 supported'thereon, is thus adapted to be detachably secured to the inner recessed plate 28 Awhich. is securely held between the annular shoulder 29 of the socket sleeve 7 and the signboard 21 or other similar or suitable support. y

A gasket or washer 32 isinterposedbetween the annularshoulder 29 on the inner socket sleeve member 7 and! the face of the sign 'board or support 21, and serves to space the annu- Vlar plate apart from the sign board 21 a suliicient distance to permit v:the securing flanges 26, 26 on the outer annularmember to be inserted through the peripheral recesses 30, 30 in the part 28 and to pass between the 10'?? peripheral vmarginal portions -or segmental peripheral locking flanges 31, 31 and lthesur- Y tace'ot the` sign board, as the outer annular hood-engaging and supporting member 23 is partially rotated in the operation of securing loa the part 23 to the innerannu'lar plate 28. I

From the foregoing `it will be readily nir' derstood that the inner or bottom annular plate 28 is secured lin position upon the sig-n board 2,1 byineans oft the socket members V6 11n and 7, andthe inner `metallic screw-threaded sleeve orsoclret member 4, which Vserves to :detachably connect the soclrct members 6 and T, and also to connect the bulb with thesoc'lret. The inner orbottom plat/e128 4bein'g'thu's'se- 115 cured to the sign board orsupport 21 andld'etachably connected with the outer hood-en- -gaging and supporting annu-lar member 23 by means oit' the interlock-ing flanges 26, 26, and 31, 31, co-acts with the socket members 6, 7, 12o and l, and withsaid outer hood-engaging and supporting member 23tosupport and detachably secure and hold the hood Iin position, and to' connect the hood with fthe lamp and with the sign boardor'support 21. p

The sign board or lamp-supporting kplate 21 is provided with and adapted to support any desired number of electric lamps :and lamp hoods in proper relation to each other," 'tor forming an electric sign.A Y 130 I claim:

1. In a device of the class described, the combination of a glass lamp hood adapted to enclose a lamp bulb, an outer annular metallic hood-engaging member in supporting engagement with said hood, securing ilanges on said metallic hood-engaging member, an inner annular plate having peripheral marginal portions adapted to detachably engage said securing flanges on said outer annular hood-engaging member, said inner annular plate having an opening therein for receiving a lamp socket, a lamp socket eX- tending into said opening, a lamp-supporting plate interposed between said lamp socket and said inner annular plate and adapted to form a sign board of an electric sign, and securing means on said socket and in securing engagement with said inner annular plate, said securing means comprising a peripherally shouldered screw-threaded sleeve having screw-threaded connection with the lamp socket and extending through an opening in said lamp-supporting plate and through and in clamping engagement with said inner annular plate and adapted to secure said socket and said inner annular plate to opposite sides of said intermediate lamp-supporting plate.

2. In a device of the class described, the combination of a glass lamp hood adapted to enclose a lamp bulb, an outer annular metallic flanged hood-engaging member in supporting engagement With said hood, an inner annular metallic plate having peripheral marginal portions adapted to be .detachably secured in locking overlapping engagement With adjacent flanged portions of said outer annular flanged hood-engaging member, said inner annular plate having an opening therein for receiving a lamp socket, a

lamp socket having a screw-threaded metallic sleeve portion extending into said opening, an intermediate lamp-supporting plate interposed between said lamp socket and said inner annular plate and adapted to form the lampsupporting sign board or plate of an electric sign, and securing means in screw-threaded engagement With said screw-threaded metallic sleeve portion of said socket and adapted to engage said inner annular plate, and acting to secure said inner annular plate and said lamp socket on opposite sides of and in rigid relation to said intermediate lamp-supporting plate.

3. In a device of the class described, the combination of a glass lamp hood ada ted to enclose a lam bulb, an outer annular anged metallic hoo -engaging member in supporting engagement With said hood, an inner annular metallic supporting plate detachably connected with and adapted to support said outer fl nged metallic hood-engaging member, andat provided with an opening for receiving a lamp socket, an electric lamp having a lamp socket extending into said opening,A

an intermediate lamp-supporting plate eX- tending between said lamp socket and said inner annular plate and adapted to form the lamp-supporting sign board of an electric sign, and an annular screw-threaded Hanged sleeve in screw-threaded engagement with said socket and adapted to engage said inner annular metallic plate, said screw-threaded sleeve and socket comprising clamping means acting to clamp said socket and said inner annular plate on opposite sides of and in rigid engagement with said lamp-supporting slgn board member.

4. In a device of the class described, the combination of a lamp socket adapted tovbe connected With a lamp bulb of an electric lamp, a metallic outer annular hood-engaging member, means for securing said outer hoodengaging member in supporting engagement with a lamp hood, for enclosing the lamp bulb, an inner annular platelocated within said outer hood-engaging and supporting member, means for detachably connecting said inner annular plate in securing engagement With said outer annular hood-engaging and supporting member, a lamp-supporting plate interposed bet-Ween said lamp socket and said inner annular plate and adapted to form a sign board of an electric sign, and a screw-threaded sleeve having screw-threaded connection With said lamp socket and extending through an vopening in said lamp-supporting plate and through and in clamping engagement With said inner annular plate, said connected screw-threaded sleeve and socket comprising means for clamping said inner annular plate and said lamp socket on Signed at Chicago, in the county of Cookv and State of Illinois, this 29th-day of March, 1926.

WILLIAM L. LAIB. 

